{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:35OZGTF24U5YIXUFPUXRBW4QRA","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ef3e5b1e9579386ab1ea5afc74516d3aabdf82e0d788d927a2d235b87a7c1954","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-07-27T18:01:43Z","title_canon_sha256":"b0ac9286a7b8e3e27d95141697ab13ad0f19fe2bd5f295b4ee5897e903cb3df2"},"schema_version":"1.0","source":{"id":"2307.15127","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.15127","created_at":"2026-07-05T06:35:30Z"},{"alias_kind":"arxiv_version","alias_value":"2307.15127v1","created_at":"2026-07-05T06:35:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.15127","created_at":"2026-07-05T06:35:30Z"},{"alias_kind":"pith_short_12","alias_value":"35OZGTF24U5Y","created_at":"2026-07-05T06:35:30Z"},{"alias_kind":"pith_short_16","alias_value":"35OZGTF24U5YIXUF","created_at":"2026-07-05T06:35:30Z"},{"alias_kind":"pith_short_8","alias_value":"35OZGTF2","created_at":"2026-07-05T06:35:30Z"}],"graph_snapshots":[{"event_id":"sha256:212160d921f9aa6e5e72f95da8586ce056e86ae2b72b32b14bb5d6ead9511132","target":"graph","created_at":"2026-07-05T06:35:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2307.15127/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two-dimensional (2D) metal-organic frameworks (MOFs) hold immense potential for various applications due to their distinctive intrinsic properties compared to their 3D analogues. Herein, we designed in silico a highly stable NiF$_2$(pyrazine)$_2$ 2D MOF with a two-periodic wine-rack architecture. Extensive first-principles calculations and Molecular Dynamics simulations based on a newly developed machine learning potential (MLP) revealed that this 2D MOF exhibits huge in-plane Poisson's ratio anisotropy. This results into an anomalous negative in-plane stretchability, as evidenced by an uncomm","authors_text":"Aydin Ozcan, Dong Fan, Guillaume Maurin, Pengbo Lyu","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-07-27T18:01:43Z","title":"Unravelling Negative In-plane Stretchability of 2D MOF by Large Scale Machine Learning Potential Molecular Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.15127","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:c3198784e1276754579cffc38170447da2d67b56331eccb9a7479de4f2168507","target":"record","created_at":"2026-07-05T06:35:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ef3e5b1e9579386ab1ea5afc74516d3aabdf82e0d788d927a2d235b87a7c1954","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-07-27T18:01:43Z","title_canon_sha256":"b0ac9286a7b8e3e27d95141697ab13ad0f19fe2bd5f295b4ee5897e903cb3df2"},"schema_version":"1.0","source":{"id":"2307.15127","kind":"arxiv","version":1}},"canonical_sha256":"df5d934cbae53b845e857d2f10db908820928aae9662a0a169536be9496f3ebc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df5d934cbae53b845e857d2f10db908820928aae9662a0a169536be9496f3ebc","first_computed_at":"2026-07-05T06:35:30.751859Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:35:30.751859Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RfObFHmSiP2VT2qMsrzjqOz9jkkvelAF2dY7oOCE+fP3P3Kvx2yINRLrFwp4SdTZ6aXB4VUd1njnAcWLm2/DCw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:35:30.752370Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.15127","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3198784e1276754579cffc38170447da2d67b56331eccb9a7479de4f2168507","sha256:212160d921f9aa6e5e72f95da8586ce056e86ae2b72b32b14bb5d6ead9511132"],"state_sha256":"98f86933d9cdf4452f0cc3428c89d10865cfef8026963c73cea685c93d097740"}